Backlit LCD

TEMP. button

.

MODE button

ON/OFF lamp
The lamp will light up in green when turned on, and blink during startup and when an error occurs.
ON/OFF button
Pressing this button starts and stops the operation.
FAN button
VANE button

Note: To set the functions that are not available on this controller (PAC- YT53CRAU) such as Louver, use the centralized controller.

Display section

CENTRAL icon *1

Note: All icons are displayed for explanation purpose.

CHECK icon 2 Preset temperature 3

icon appears while the unit is operated in the energy-save mode
icon appears when Operation lock setting is effective.

icon appears when indoor unit functions are set up. (Refer to the Installation Manual.)

Fan speed icon Vane icon

icon appears when the power is on.

Indoor temperature Operation modes

*1 CENTRAL icon
Appears when one of the following local operations is prohibited: ON/OFF; operation mode; preset temperature; fan speed; vane.

*2

icon

For City Multi, when an error occurs, power indicator will blink, and unit address (3 digits) and check code (4 digits) will blink. Check the error status, stop the operation, and consult your dealer.

*3 Preset temperature

• Centigrade or Fahrenheit is selectable. Refer to the Installation Manual for details.

In COOL, DRYING, HEAT, or AUTO (single set point) modes

In AUTO (dual set point) or SETBACK modes

Room Set to
AUTO COOLHEATFAN DRYING VENTI. SETBACK

Preset temperature

Room Set to
AUTO COOLHEATFAN DRYING VENTI. SETBACK

Cooling preset temperature
Heating preset temperature

ERROR INFORMATION

When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1. Check code, error unit, refrigerant address, model name, and serial number will appear. The model name and serial number will appear only if the information has been registered. Press the F1 or F2 button to go to the next page.
Contact information (dealer’s phone number) will appear if the information has been registered.
2. Press the F4 button or the [ON/OFF] button to reset the error that is occurring. Errors cannot be reset while the ON/OFF operation is prohibited.
Select “OK” with the F4 button.
Navigating through the screens · To go back to the Service menu ………. [MENU] button

Error information

Error code A3

Error unit IU

Unit#1

Time Occurred 2/ 1 4:48

Model name

Serial No.

Reset error: Reset button

Page

Reset

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4 blinks
ON OFF

Error information
Contact information Dealer
Tel

Reset error: Reset button

Page

Reset

Error information

Error code A3

Error unit IU

Unit#1

Time Occurred 2/ 1 4:48

Model name

Serial No.

Reset error: Reset button

Page

Reset

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4 blinks
ON OFF

Error reset Reset current error?
Cancel OK
F1 F2 F3 F4
Error reset Error reset Main menu: MENU

TCH124A

44

· Checking the error information
While no errors are occurring, page 2/2 of the error information can be viewed by selecting “Error information” from the Maintenance menu. Errors cannot be reset from this screen.

Maintenance menu Error information Filter information Cleaning
Main menu: RETURN Cursor

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

TCH124A

45

SERVICE MENU

Maintenance password is required 1. Select “Service” from the Main menu, and press the [SELECT/HOLD] button.
*At the main display, the menu button and select “Service” to make the maintenance setting.

Main Main menu Service

2. When the Service menu is selected, a window will appear asking for the password. To enter the current maintenance password (4 numerical digits), move the cursor to the digit you want to change with the F1 or F2 button.
Set each number (0 through 9) with the F3 or F4 button.
Then, press the [SELECT/HOLD] button.
Note: The initial maintenance password is “9999”. Change the default password as necessary to prevent unauthorized access. Have the password available for those who need it.
: If you forget your maintenance password, you can initialize the password to the default password “9999” by pressing and holding the F1 button for 10 seconds on the maintenance password setting screen.
3. If the password matches, the Service menu will appear. The type of menu that appears depends on the connected indoor units’ type.
Note: Air conditioning units may need to be stopped to make only at “Settings”. There may be some settings that cannot be made when the system is centrally controlled.
A screen will appear that indicates the setting has been saved.
Navigating through the screens · To go back to the Service menu ………….. [MENU] button · To return to the previous screen…………… [RETURN] button

Service menu Enter maintenance password

Select: SELECT Cursor

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4
ON OFF

Service menu Test run Input maintenance info. Settings Check Others Main menu: RETURN
Cursor
Service menu
Not available. Please stop the unit.
Service menu: RETURN

TCH124A

46

11-4. TEST RUN
11-4-1. PAR-41MAA 1. Select “Service” from the Main menu, and press the [SELECT/HOLD] button.
Select “Test run” with the F1 or F2 button, and press the [SELECT/HOLD] button.
2. Select “Test run” with the F1 or F2 button, and press the [SELECT/HOLD] button.
Test run operation Press the F1 button to go through the operation modes in the order of “Cool and Heat”.
Cool mode: Check the cold air blows out. Heat mode: Check the heat blows out. Check the operation of the outdoor unit’s fan. Press the [SELECT/HOLD] button and open the Vane setting screen.
Auto vane check Check the auto vane with the F1 F2 buttons. Press the [RETURN] button to return to “Test run operation”. Press the [ON/OFF] button. When the test run is completed, the “Test run menu” screen will appear. The test run will automatically stop after 2 hours. *The function is available only for the model with vanes.

Service menu
Test run Input maintenance info. Settings Check Others
Main menu: RETURN Cursor

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4
ON OFF

Test run menu
Test run Drain pump test run

Service menu: MENU Cursor

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4
ON OFF

Test run

Remain

Cool Mode

Pipe 83°F
Switch disp. SELECT

Auto Fan

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4
ON OFF

Test run

Remain

Vane

F1 F2 F3

MENU

RETURN

SELECT HOLD

F4
ON OFF

TCH124A

47

11-4-2. PAR-SL101A-E

1. Press the

button 1 to stop the air conditioner.

· If the weekly timer is enabled ( is on), press the

button 3 to disable it ( is off).

2. Press the

button 2 for 5 seconds.

B

· comes on and the unit enters the service mode.

3. Press the

button 2.

· B comes on and the unit enters the test run mode.

A

4. Press the following buttons to start the test run.

: Switch the operation mode between cooling and heating

and start the test run.

1

: Switch the fan speed and start the test run.

: Switch the airflow direction and start the test run.

: Switch the louver and start the test run.

: Start the test run.

2

5. Stop the test run.

3

· Press the

button 1 to stop the test run.

· After 2 hours, the stop signal is transmitted.

TCH124A

48

11-5. FUNCTION SETTING
11-5-1. PAR-41MAA
1. Select Service from the Main menu, and press the [SELECT/HOLD] button.
Select Setting from the Service menu, and press the [SELECT/HOLD] button.
Select Function setting, and press the [SELECT/HOLD] button.
2. The Function setting screen will appear. Press the F1 or F2 button to move the cursor to one of the following: M-NET address, function setting number, or setting value. Then, press the F3 or F4 button to change the settings to the desired settings.
Once the settings have been completed, press the [SELECT/HOLD] button. A screen will appear indicating that the settings information is being sent. To check the current settings of a given unit, enter the setting for its M-NET address and function setting number, select Conf for the Function, and press the [SELECT/HOLD] button. A screen will appear indicating that the settings are being searched for. When the search is done, the current settings will appear.
When the settings information has been sent, a screen will appear indicating its completion. To make additional settings, press the [RETURN] button to return to the screen shown in the above step. Set the function numbers for other indoor units by following the same steps.

Settings menu Function setting Lossnay
Service menu: MENU Cursor

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

Function setting

M-NET address 3

Function No.

32

Data

2

Function

Set /Conf

Select: SELECT

Cursor

Address

Function setting

M-NET address 3

Function No.

32

Data

2

Sending data

Function setting

M-NET address 3

Function No.

32

Data

2

Setting completed

Return: RETURN

Note: · Refer to the indoor unit Installation Manual for information about the factory settings
of indoor units, function setting numbers, and setting values. · Be sure to write down the settings for all functions if any of the initial settings has
been changed after the completion of installation work.

TCH124A

49

11-5-2. PAR-SL101A-E Fig. 11-1
A

1. Going to the function select mode

Press the

button between of 5 seconds.

(Start this operation from the status of remote controller display turned off.)

[CHECK] is lit and 00 blinks. (Fig. 11-1)

Press the button to set the 50.

Direct the wireless remote controller toward the receiver of the indoor unit

and press the

button.

2. Setting the unit number

Press the button to set unit number A. (Fig. 11-2)

Direct the wireless remote controller toward the receiver of the indoor unit

and press the

button.

Fig. 11-2

3. Select a mode

Press the button to set Mode number B. (Fig. 11-3)

Direct the wireless remote controller toward the receiver of the indoor unit

and press the

button.

Current setting number:

1=1 beep (1 second)

2=2 beep (1 second each)

B

3=3 beep (1 second each)

Fig. 11-3 Fig. 11-4

4. Selecting the setting number

Use the button to change the Setting number C. (Fig. 11-4)

Direct the wireless remote controller toward the receiver of the indoor unit

and press the

button.

5. To select multiple functions continuously

Repeat select 3 and 4 to change multiple function settings continuously.

6. Complete function selection

C

Direct the wireless remote controller toward the sensor of the indoor unit

and press the

button.

Note: Make the above settings on Indoor units as necessary. · Be sure to write down the settings for all functions if any of the initial
settings has been changed after the completion of installation work.

TCH124A

50

11-6. ERROR HISTORY
1. Select Service from the Main menu, and press the [SELECT/HOLD] button.
Select Check with the F1 or F2 button, and press the [SELECT/HOLD] button.
2. Select Error history with the F1 or F2 button, and press the [SELECT/HOLD] button.
3. 16 error history records will appear. 4 records are shown per page, and the top record on the first page indicates the latest error record.

Service menu
Test run Input maintenance info. Settings Check Others
Main menu: RETURN Cursor

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

Check menu Error history Diagnosis
Service menu: MENU Cursor

Error history

Error Unt# dd/mm/yy

6831 6831 6831
6831

Check menu: RETURN

Page

Delete

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

4. Deleting the error history To delete the error history, press the F4 button (Delete) on the screen that shows error history. A confirmation screen will appear asking if you want to delete the error history.
Press the F4 button (OK) to delete the history.
Error history deleted will appear on the screen. Press the [RETURN] button to go back to the Check menu screen.

Error history Delete error history?
Cancel OK
Error history Error history deleted Check menu: RETURN

TCH124A

51

11-7. SELF-DIAGNOSIS
11-7-1. PAR-41MAA
1. Select Service from the Main menu, and press the [SELECT/HOLD] button.
Select Check from the Service menu, and press the [SELECT/HOLD] button.
Select Diagnosis from the Check menu, and press the [SELECT/HOLD] button.
Select Self check with the F1 or F2 button, and press the [SELECT/HOLD] button.

Diagnosis Self check Remote controller check
Service menu: MENU Cursor

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

2. Select “Self check” from the Diagnosis menu, and press the [SELECT/HOLD] button to view the Self check screen.
With the F1 or F2 button, enter the M-NET address, and press the [SELECT/HOLD] button.

Self check M-NET address

Check code, unit number, attribute, and indoor unit demand signal ON/OFF status at the contact will appear. “-” will appear if no error history is available.

Self check M-NET address

Error Contact Off

Grp. IC

Return: RETURN

Reset

Select: SELECT Address

When there is no error history

Self check M-NET address

Error —-

– Grp. —

Contact Off

Return: RETURN

Reset

3. Resetting the error history
Press the F4 button (Reset) on the screen that shows the error history. A confirmation screen will appear asking if you want to delete the error history.
Press the F4 button (OK) to delete the error history. If deletion fails, “Request rejected” will appear, and “Unit not exist” will appear if indoor units that are correspond to the entered address are not found.

Self check M-NET address
Delete error history?
Cancel OK
Self check M-NET address
Error history deleted Return: RETURN

TCH124A

52

11-7-2. PAR-SL101A-E
B
3 5

1. Press the

button 1 to stop the air conditioner.

is on), press the

button 3

A

to disable it ( is off).

2. Press the A

button 2 for 5 seconds.

3. Press the button 5 to select the refrigerant address (M-NET address) B of the indoor

4. Press the

button 4.

1

f

indoor unit and the number of blinks of the OPERATION

INDICATOR lamp.

5. Press the

button 1.

A and the refrigerant address (M-NET address) B

2

check is completed.

4

TCH124A

53

11-8. REMOTE CONTROLLER CHECK
If operations cannot be completed with the remote controller, diagnose the remote controller with this function.

1. Select “Service” from the Main menu, and press the [SELECT/HOLD] button.
Select “Check” from the Service menu, and press the [SELECT/HOLD] button.
Select “Diagnosis” from the Check menu, and press the [SELECT/HOLD] button.
Select “Remote controller check” with the F1 or F2 button, and press the [SELECT/HOLD] button.

Diagnosis
Self check Remote controller check

Service menu: MENU Cursor

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

2. Select “Remote controller check” from the Diagnosis menu, and press the [SELECT/HOLD] button to start the remote controller check and see the check results.
To cancel the remote controller check and exit the “Remote controller check” menu screen, press the [MENU] or the [RETURN] button.
The remote controller will not reboot itself.

Remote controller check Start checking?
Begin: SELECT

F1 F2 F3 F4

MENU

RETURN

SELECT HOLD

ON OFF

3. OK:

No problems are found with the remote controller. Check other parts

for problems.

E3, 6832: There is noise on the transmission line, or the indoor unit or another

remote controller is faulty. Check the transmission line and the other

remote controllers.

NG (ALL0, ALL1): Send-receive circuit fault. The remote controller needs replac-

ing.

ERC: The number of data errors is the discrepancy between the number of bits

in the data transmitted from the remote controller and that of the data

that was actually transmitted over the transmission line. If data errors are

found, check the transmission line for external noise interference.

If the [SELECT/HOLD] button is pressed after the remote controller check results are displayed, remote controller check will end, and the remote controller will automatically reboot itself.
Check the remote controller display and see if anything is displayed (including lines). Nothing will appear on the remote controller display if the correct voltage (8.5­12 VDC) is not supplied to the remote controller. If this is the case, check the remote controller wiring and indoor units.

Remote controller check results screen Remote controller check OK
Exit : SELECT

TCH124A

54

HEAD OFFICE : TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD. 700/406 MOO 7, TAMBON DON HUA ROH, AMPHUR MUANG, CHONBURI 20000 THAILAND Issued: Aug. 2023. No. TCH124 REVISED EDITION-A Published: Jul. 2023. No. TCH124 Made in Thailand

Specifications are subject to change without notice.

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>